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(iPhone) How to enable ipod controls in the background to control non-ipod music (in ios4) ?

Answer 1

+1 A:

The controls will change for your application if you are using the new background audio api's. Information can be found here. Specifically the sections about background audio.

Elfred 2010-07-07 15:44:37

I've read that page multiple times already. It seems (just like for background audio), that once UIBackgroundModes is set to audio, the controls should work by themselves.In my experience, this is not the case. I'm guessing the problem is that I'm streaming music, not playing it from the device, or perhaps I've missed something. Perhaps my Audiostreamer isn't set right.To be more specific : to anyone who has ever managed to do this, did you use [musicPlayer beginGeneratingPlaybackNotifications] and hook the following notifications to your own streaming player ?

Max 2010-07-08 08:41:16

You should be using AVAudioSessions.

Elfred 2010-07-08 13:22:33

Answer 2

+1 A:

Problem is solved.

In short, to enable remote control event, 1) use :

- (void)remoteControlReceivedWithEvent:(UIEvent)theEvent

and 2) put this is your view controller :

- (void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];
    [[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
    [self becomeFirstResponder];
}

I have to give credit to Grant. He has forked Matt Gallagher's AudioStreamer enabling all the ios4 improvements (background audio, and remote controls working). You can find his sources along with a working sample on github : http://github.com/DigitalDJ/AudioStreamer

Regarding the icon : once you use beginReceivingRemoteControlEvents, the icon automatically switches to your app icon. Brilliant !

Max 2010-07-09 08:35:34

Thanks! But, you forgot something. Even though I adjusted my code (adding remoteControlReceivedWithEvent and the stuff inside viewDidAppear), nothing happend when pressing previous/play/pause/next buttons in the ipod controls. The missing piece was, I needed this method: -(BOOL)canBecomeFirstResponder { return YES; }

Jonny 2010-08-19 07:33:01

I'll have to comment again. I thought all of the above would fix it, but even after running this successfully a few times, there are times when the events just don't arrive at the view controller where I did the becomeFirstResponder and all. It's like it just stops working at some point, and I've yet to figure out what could be causing the problem.

Jonny 2010-08-19 09:13:59

Answer 3

A:

Plz see the following Q&A http://stackoverflow.com/questions/3488850/how-can-i-replace-ipod-with-my-app-icon-while-my-app-is-playing-audio-in-backgrou

alones 2010-08-29 08:15:31

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(iPhone) How to enable ipod controls in the background to control non-ipod music (in ios4) ?

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